ClassID:

126888

D21H17/23 - CPC Classification

Classification description:

Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution; Macromolecular organic compounds of natural origin; Derivatives thereof Lignins

Recent Application in this class:
#1
20260131269
2026-05-14

FILTRATION MEDIUM

#2
20250059711
2025-02-20

FLOUROCARBON FREE AND BIOBASED OIL AND WATER BARRIER MATERIALS

#3
20250012015
2025-01-09

PALLET OUTER PACKAGING PAPER

#4
20240344271
2024-10-17

USE OF MODIFIED LIGNIN AS A WET END STRENGTH ADDITIVE

#5
20240301629
2024-09-12

PROCESS FOR IMPROVING MOISTURE- AND WATER-RESISTANCE OF PAPER

#6
20240057658
2024-02-22

TOBACCO SHEET FOR NON-COMBUSTION HEATING-TYPE FLAVOR INHALER, NON-COMBUSTION HEATING-TYPE FLAVOR INHALER, AND NON-COMBUSTION HEATING-TYPE FLAVOR INHALATION SYSTEM

#7
20240011225
2024-01-11

INSULATION MATERIAL, INSULATION PRODUCT, LAYER STUCTURE, CONSTRUCTION AND METHOD OF MANUFACTURING INSULATION MATERIAL

#8
20230366153
2023-11-16

SURFACE SIZE COMPOSITION AND ITS USE

#9
20230243101
2023-08-03

AN AQUEOUS EMULSION AND METHOD FOR MAKING IT

#10
20230151553
2023-05-18

MULTILAYER FILM COMPRISING HIGHLY REFINED CELLULOSE FIBERS

#11
20230133654
2023-05-04

METHOD FOR MAKING MOISTURE-RESISTANT PAPER

#12
20220356652
2022-11-10

Fluorocarbon-free and bio-based oil and water barrier materials comprising polyelectrolyte complexes

#13
20220098440
2022-03-31

Processes for producing lignin-coated hydrophobic cellulose, and compositions and products produced therefrom

#14
20210309809
2021-10-07

METHOD AND APPARATUS FOR SEPARATING LIGNOCELLULOSE PARTICLE FRACTION AND LIGNIN PARTICLE FRACTION, LIGNIN PARTICLE COMPOSITION, LIGNOCELLULOSE PARTICLE COMPOSITION AND THEIR USE

#15
20210269981
2021-09-02

CELLULOSE COMPOSITION

#16
20210148052
2021-05-20

Method of producing hydrophobic paper

#17
20200199407
2020-06-25

Processes for producing lignin-coated hydrophobic cellulose, and compositions and products produced therefrom

#18
20190382959
2019-12-19

Method of preparing a sizing boost additive

#19
20190330803
2019-10-31

Method for improving the resistance of paper and paperboard to aqueous penetrants

#20
20190226150
2019-07-25

Bio-based PEC compositions as binders for fiber based materials, textiles, woven and nonwoven materials

#21
20190003126
2019-01-03

Method for producing a sizing agent composition, a sizing agent composition and use thereof

#22
20180119361
2018-05-03

Molded pomace pulp products and methods

#23
20170335520
2017-11-23

Biopolymer sizing agents

#24
20170335138
2017-11-23

PROCESSES FOR PRODUCING LIGNIN-COATED HYDROPHOBIC CELLULOSE, AND COMPOSITIONS AND PRODUCTS PRODUCED THEREFROM

#25
20170313826
2017-11-02

Methods for treating lignocellulosic materials

#26
20160333146
2016-11-17

Method and apparatus for separating lignocellulose particle fraction and lignin particle fraction, lignin particle composition, lignocellulose particle composition and their use

#27
20160229088
2016-08-11

Production of high performance thermoplastic composites

#28
20140243511
2014-08-28

Functionalized lignin and method of producing the same

#29
20100166968
2010-07-01

Method for Treating a Paper Product

#30
20100108279
2010-05-06

Method for producing paper, paperboard and cardboard having high dry strength

#31
20090139677
2009-06-04

Aqueous alkylketene dimer dispersions

#32
20080146715
2008-06-19

Aqueous Mineral Suspensions

#33
20050061462
2005-03-24

Aqueous silica-containing composition